EP0353522B1 - Catering trolley, in particular for passenger aircraft - Google Patents
Catering trolley, in particular for passenger aircraft Download PDFInfo
- Publication number
- EP0353522B1 EP0353522B1 EP89112909A EP89112909A EP0353522B1 EP 0353522 B1 EP0353522 B1 EP 0353522B1 EP 89112909 A EP89112909 A EP 89112909A EP 89112909 A EP89112909 A EP 89112909A EP 0353522 B1 EP0353522 B1 EP 0353522B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base plate
- rocking lever
- rocking
- rod
- break
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/04—Braking mechanisms; Locking devices against movement
Definitions
- the innovation relates to a serving trolley according to the preamble of claim 1.
- Such serving trolleys are known: DE 34 44 799 A1.
- the coupling of the braking devices provided on the two end faces of the serving trolley is very complex, especially since the braking forces are to be transmitted from the operating side to the opposite side. Things become even more difficult if both front sides of the serving trolley are to be suitable as the operating side - independently of one another.
- the object of the innovation is to provide a simple, reliable coupling for the brakes on both ends with a good possibility for easily releasing the braking device. This object is achieved according to the innovation in the serving trolley mentioned in a first embodiment by the features specified in the characterizing part of claim 1.
- the solution specified here makes it possible to design the rocker arms of the two end faces of the serving trolley as brake pedals, so that the serving trolley can be operated from both end faces.
- both rocker arms can be arranged in the same direction, so that only one rocker arm, the rocker arm on the operating side, is designed as a brake pedal.
- the coupling rod can be directly on the underside of the bottom of the serving trolley run by being articulated on the rocker arms above the bearing points of both rocker arms.
- rocker arm Since friction forces have to be overcome when the rocker arms are actuated - the rocker arm must slide along the transition line of its two supporting surfaces on the underside of the floor - a roller is advantageously provided on the rocker arm, which facilitates this sliding process.
- the bearing of this role can also be provided as a pivot point for the coupling rod.
- the braking device is also ideally suited for the additional attachment of its own brake release pedal, which is then also mounted directly on the brake rod next to the brake pedal.
- An angle lever articulated on the brake release pedal which is supported on the underside of the bottom of the serving trolley and which reverses the rotary movement of the brake release pedal, serves as an ejector for the brake pedal, in that its free end lies behind a stop of the brake pedal.
- the serving trolley which has a base plate 1 in detail but not shown, is on each end face 2, 3 provided with two castors 4, 5 each.
- These castors 4, 5 can be blocked by means of a brake rod 6, 7 running parallel to the end face 2, 3, the brake rod being displaceable downwards in vertical guide slots, but otherwise being pressed towards the base plate 1 by the force of a spring.
- a rocker arm designed as a brake pedal 8, 9 is mounted, which is supported in the driving position of the serving trolley by means of a support surface 10, 11 on the underside of the base plate 1.
- Each brake pedal has a second support surface 12, 13 which is at a somewhat greater distance from the pivot axis (brake rod 6, 7).
- a roller 14, 15 is provided, which rolls on the underside of the base plate 1 when the brake pedal is actuated.
- the brake pedal 8 is pressed down, it pivots about the brake rod 6, at the same time the brake rod is pressed down, and the roller 14 moves to the left on the underside of the base plate 1.
- the brake rod 6 is pressed down by the amount A, which is used to lock the wheels. By this amount A, the distance of the support surface 12 from the pivot axis (brake rod 6) is greater than the distance of the support surface 10.
- the support surfaces 10, 12 are arranged asymmetrically such that the line of action 16, the spring acting on the brake rod 6 spring on this side of the support surface 12 is so that the brake pedal 8 can hold itself in this position.
- the braking position is dashed in in Figure 1.
- the arrangement of the rocker arm of the end face 3 designed as a brake pedal 9 corresponds exactly to the arrangement of the brake pedal 8 of the end face 2.
- the two rocker arms (brake pedal 8 and brake pedal 9) are only supported in opposite directions.
- a tensile and compressive rod 17 is provided, which is articulated on the one hand on the roller 14 of the left brake pedal 8 - i.e. above the pivot axis (brake rod 6) - and on the other hand on the right brake pedal 9 below its pivot axis. It is readily apparent that regardless of which brake pedal 8 or 9 is operated, the other brake pedal must follow this activity.
- the serving trolley shown here is only provided on its left side with a rocker arm designed as a brake pedal 81.
- This brake pedal is designed in exactly the same way as that previously described according to FIG. 1.
- On the right side of the serving trolley only a simple rocker arm 91 is provided, which cannot be operated as a pedal.
- This rocker arm 91 corresponds with its support surfaces 11, 13 to the support surfaces 10, 12 of the brake pedal 81.
- the rocker arm 91 is arranged in the same direction as the brake pedal 81. This means that this rocker arm 91 can not be designed as a brake pedal, so that this trolley is only suitable for operation from its left side.
- Brake pedal 81 and rocker arm 91 are in turn coupled by a coupling rod 18 which runs close to the base plate 1 and is articulated in the bearings of the rollers 14, 15 in the same way both for the brake pedal 81 and for the rocker arm 91. This is possible because the rocker arm 91 is arranged in the same direction as the brake pedal 81.
- a special brake release pedal 19 is mounted on the brake rod 6 in addition to the brake pedal 8.
- This brake release pedal 19 is articulated on its end facing away from the tread surface 20 with an angle lever 21.
- This angle lever 21 rests with a roller 22, which is provided at one end 25, on the underside of the base plate 1.
- the other free end 23 of the angle lever 21 engages behind a driver 24 of the brake pedal 8. So if the brake release pedal 19 is depressed, the angle lever 21 rotates the rotary movement of the brake release pedal 19 and strikes the driver 24 with its free end 23 and throws so the brake pedal 8 out. This position is dashed in Figure 5.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Braking Elements And Transmission Devices (AREA)
Description
Die Neuerung bezieht sich auf einen Servierwagen gemäß Oberbegriff des Schutzanspruches 1. Derartige Servierwagen sind bekannt: DE 34 44 799 A1.The innovation relates to a serving trolley according to the preamble of
Bei diesem Servierwagen wird es für erforderlich gehalten, den Wagen an allen vier Rädern abbremsen zu können, um einen sicheren Stand, z.B. im Flugzeug, zu erreichen. Die Kopplung der an den beiden Stirnseiten des Servierwagens vorgesehenen Bremsvorrichtungen gestaltet sich hierbei sehr aufwendig, zumal die Bremskräfte von der Bedienseite zur entgegengesetzten Seite zu übertragen sind. Noch schwieriger wird die Sache, soweit beide Stirnseiten des Servierwagens als Bedienseite - und zwar unabhängig voneinander - geeignet sein sollen. Aufgabe der Neuerung ist es, eine einfache zuverlässige Kopplung für die Bremsen beider Stirnseiten mit einer guten Möglichkeit zum leichten Wiederlösen der Bremsvorrichtung anzugeben. Diese Aufgabe wird neuerungsgemäß bei dem eingangs genannten Servierwagen in einer ersten Ausführungsform durch die im Kennzeichen des Schutzanspruches 1 angegebenen Merkmale gelöst. Die hier angegebene Lösung ermöglicht es, die Kipphebel der beiden Stirnseiten des Servierwagens jeweils als Bremspedale auszubilden, so daß der Servierwagen von beiden Stirnseiten aus bedient werden kann.With this serving trolley, it is considered necessary to be able to brake the trolley on all four wheels in order to stand safely, e.g. on the plane. The coupling of the braking devices provided on the two end faces of the serving trolley is very complex, especially since the braking forces are to be transmitted from the operating side to the opposite side. Things become even more difficult if both front sides of the serving trolley are to be suitable as the operating side - independently of one another. The object of the innovation is to provide a simple, reliable coupling for the brakes on both ends with a good possibility for easily releasing the braking device. This object is achieved according to the innovation in the serving trolley mentioned in a first embodiment by the features specified in the characterizing part of
Soweit ein beidseitiges Bedienen des Servierwagens nicht erforderlich ist, und zwar bei den sogenannten half-cart-Servierwagen, können gemäß einer zweiten Ausführungsform beide Kipphebel gleichsinnig angeordnet werden, so daß nur der eine Kipphebel, der Kipphebel der Bedienseite, als Bremspedal ausgebildet wird. Hierbei kann die Kopplungsstange unmittelbar an der Unterseite des Bodens des Servierwagens verlaufen, indem diese jeweils oberhalb der Lagerstellen beider Kipphebel an den Kipphebeln angelenkt wird.Insofar as it is not necessary to operate the serving trolley on both sides, namely in the so-called half-cart serving trolleys, according to a second embodiment, both rocker arms can be arranged in the same direction, so that only one rocker arm, the rocker arm on the operating side, is designed as a brake pedal. Here, the coupling rod can be directly on the underside of the bottom of the serving trolley run by being articulated on the rocker arms above the bearing points of both rocker arms.
Da beim Betätigen der Kipphebel Reibungskräfte zu überwinden sind - der Kipphebel muß mit der Ubergangslinie seiner beiden Stützflächen an der Unterseite des Bodens entlanggleiten - wird zweckmäßig am Kipphebel eine Rolle vorgesehen, die diesen Gleitvorgang erleichtert. Das Lager dieser Rolle kann hierbei gleichzeitig als Anlenkstelle für die Kopplungsstange vorgesehen werden. Infolge der asymmetrischen Anordnung der beiden Stützflächen des Kipphebels hält sich dieser in der Bremsstellung selbst, indem die Wirklinie der die Bremsstange beaufschlagenden Feder die Stützfläche mit dem größeren Abstand zur Schwenkachse schneidet. Das Wiederlösen der Bremsvorrichtung kann hierbei auf einfache Weise dadurch geschehen, daß die Fußspitze unter dem Bremspedal angesetzt und dann angehoben wird.Since friction forces have to be overcome when the rocker arms are actuated - the rocker arm must slide along the transition line of its two supporting surfaces on the underside of the floor - a roller is advantageously provided on the rocker arm, which facilitates this sliding process. The bearing of this role can also be provided as a pivot point for the coupling rod. As a result of the asymmetrical arrangement of the two support surfaces of the rocker arm, the latter holds itself in the braking position in that the line of action of the spring acting on the brake rod intersects the support surface with the greater distance from the pivot axis. The brake device can be released again in a simple manner in that the tip of the foot is placed under the brake pedal and then raised.
Die Bremsvorrichtung ist aber auch bestens geeignet für das zusätzliche Anbringen eines eigenen Bremslösepedals, welches dann direkt neben dem Bremspedal ebenfalls auf der Bremsstange gelagert wird. Ein am Bremslösepedal angelenkter Winkelhebel, der sich an der Unterseite des Bodens des Servierwagens abstützt und der die Drehbewegung des Bremslösepedals umkehrt, dient als Auswerfer für das Bremspedal, indem er mit seinem freien Ende hinter einem Anschlag des Bremspedals liegt.The braking device is also ideally suited for the additional attachment of its own brake release pedal, which is then also mounted directly on the brake rod next to the brake pedal. An angle lever articulated on the brake release pedal, which is supported on the underside of the bottom of the serving trolley and which reverses the rotary movement of the brake release pedal, serves as an ejector for the brake pedal, in that its free end lies behind a stop of the brake pedal.
Ausführungsbeispiele der Neuerung ist in der Zeichnung dargestellt und werden nachstehend näher erläutert. Es zeigen:
Figur 1- eine erste Ausführungsform mit beidseitiger Bedienung der Bremsvorrichtung,
Figur 2- eine zweite Ausführungsform mit einseitiger Bedienung der Bremsvorrichtung,
Figur 3 bis 5- die zusätzliche Anordnung eines Bremslösepedals.
- Figure 1
- a first embodiment with operation of the braking device on both sides,
- Figure 2
- a second embodiment with one-sided operation of the braking device,
- Figure 3 to 5
- the additional arrangement of a brake release pedal.
Gemäß Figur 1 ist der eine Bodenplatte 1 besitzende im einzelnen aber nicht dargestellte Servierwagen an jeder Stirnseite 2, 3 mit je zwei Fahrrollen 4, 5 versehen. Diese Fahrrollen 4, 5 sind mittels je einer zur Stirnseite 2, 3 parallel verlaufenden Bremsstange 6, 7 blockierbar, wobei die Bremsstange in senkrechten Führungsschlitzen nach unten verschiebbar ist, im übrigen aber durch die Kraft einer Feder in Richtung Bodenplatte 1 gedrückt wird. Auf jeder Bremsstange 6, 7 ist je ein als Bremspedal 8, 9 ausgebildeter Kipphebel gelagert, der sich in der Fahrstellung des Servierwagens mittels einer Stützfläche 10, 11 an der Unterseite der Bodenplatte 1 abstützt. Jedes Bremspedal besitzt eine zweite Stützfläche 12, 13, die einen etwas größeren Abstand zur Schwenkachse (Bremsstange 6, 7) aufweist. An der Übergangslinie der beiden Stützflächen 10, 12 bzw. 11, 13 ist jeweils eine Rolle 14, 15 vorgesehen, die an der Unterseite der Bodenplatte 1 beim Betätigen des Bremspedals abrollt. Wird z.B. das Bremspedal 8 nach unten gedrückt, so schwenkt dieses um die Bremsstange 6, wobei gleichzeitig die Bremsstange nach unten gedrückt wird, und die Rolle 14 sich an der Unterseite der Bodenplatte 1 nach links bewegt. Die Bremsstange 6 wird hierbei um den Betrag A hinuntergedrückt, was zum Blockieren der Räder ausgenutzt wird. Um diesen Betrag A ist der Abstand der Stützfläche 12 von der Schwenkachse (Bremsstange 6) größer als der Abstand der Stützfläche 10. Ferner sind die Stützflächen 10, 12 derart asymmetrisch angeordnet, daß die Wirklinie 16, der die Bremsstange 6 beaufschlagenden Feder diesseits der Stützfläche 12 liegt, so daß sich das Bremspedal 8 in dieser Stellung selbst halten kann. Die Bremsstellung ist in Figur 1 eingestrichelt.According to FIG. 1, the serving trolley, which has a
Wie aus der Figur 1 bereits ersichtlich, entspricht die Anordnung des als Bremspedal 9 ausgebildeten Kipphebels der Stirnseite 3 genau der Anordnung des Bremspedals 8 der Stirnseite 2. Die beiden Kipphebel (Bremspedal 8 und Bremspedal 9) sind lediglich gegensinnig gelagert. Zur Zwangskopplung der beiden Kipphebel ist eine zug- und druckbelastbare Stange 17 vorgesehen, die einerseits an der Rolle 14 des linken Bremspedals 8 - also oberhalb der Schwenkachse (Bremsstange 6) - und andererseits am rechten Bremspedal 9 unterhalb dessen Schwenkachse angelenkt ist. Es ist ohne weiteres klar, daß unabhängig davon, welches Bremspedal 8 oder 9 betätigt wird, das andere Bremspedal dieser Betätigung folgen muß.As can already be seen from FIG. 1, the arrangement of the rocker arm of the
Gemäß Figur 2 ist der hier dargestellte Servierwagen lediglich auf seiner linken Seite mit einem als Bremspedal 81 ausgebildeten Kipphebel versehen. Dieses Bremspedal ist genauso ausgeführt wie das zuvor gemäß Figur 1 beschriebene. Auf der rechten Seite des Servierwagens ist hingegen lediglich ein einfacher Kipphebel 91 vorgesehen, der also nicht als Pedal betätigt werden kann. Dieser Kipphebel 91 entspricht mit seinen Stützflächen 11, 13 den Stützflächen 10, 12 des Bremspedals 81. Der Kipphebel 91 ist hierbei gleichsinnig zum Bremspedal 81 angeordnet. Das bedeutet, daß dieser Kipphebel 91 nicht als Bremspedal ausgebildet werden kann, daß somit dieser Servierwagen lediglich von seiner linken Seite her zur Bedienung geeignet ist. Bremspedal 81 und Kipphebel 91 sind wiederum durch eine Kopplungsstange 18 gekoppelt, die dicht an der Bodenplatte 1 verläuft und sowohl beim Bremspedal 81 wie auch beim Kipphebel 91 auf gleiche Weise im Lager der Rollen 14, 15 angelenkt ist. Dies ist möglich, da der Kipphebel 91 gleichsinnig zum Bremspedal 81 angeordnet ist.According to FIG. 2, the serving trolley shown here is only provided on its left side with a rocker arm designed as a
Gemäß Figur 3, 4 und 5 ist neben dem Bremspedal 8 auf der Bremsstange 6 ein spezielles Bremslösepedal 19 gelagert. Dieses Bremslösepedal 19 ist auf seinem der Trittfläche 20 abgekehrten Ende mit einem Winkelhebel 21 gelenkig verbunden. Dieser Winkelhebel 21 liegt mit einer Rolle 22, die an seinem einen Ende 25 vorgesehen ist, an der Unterseite der Bodenplatte 1 an. Das andere freie Ende 23 des Winkelhebels 21 greift hinter einen Mitnehmer 24 des Bremspedals 8. Wird also das Bremslösepedal 19 nach unten getreten, so dreht der Winkelhebel 21 die Drehbewegung des Bremslösepedals 19 um und trifft mit seinem freien Ende 23 auf den Mitnehmer 24 und wirft so das Bremspedal 8 raus. Diese Stellung ist in Figur 5 eingestrichelt.According to FIGS. 3, 4 and 5, a special
Claims (4)
- Catering trolley with rectangular base (1), used in particular for passenger aircraft, that has castors (4, 5) which are arranged on each end of the trolley base, with the following characteristics:
the castors (4, 5) are blockable by means of two break rods (6, 7) which are positioned below the base plate parallel to the fronts (2, 3) and which are each displaceable in vertical guiding slots of two mountings
every break rod (6, 7) is pressed by the power of a spring in direction of the base plate
every break rod (6, 7) can be actuated by means of a rocking lever (8, 9), which is supported on the break rod between two mountings
every rocking lever (8, 9) posesses two supporting surfaces (10, 11, 12, 13) which shift in an obtuse angle from one to the other and are located in different distances to the turning axis of the rocking lever, of which either one (e.g. 10, 11) or the other (e.g. 12, 13) comes into contact with the bottom of the base plate 1
the supporting surface (12, 13) with the larger distance to the turning axis (6, 7) which comes into contact with the bottom of the base plate exceeds the line of action (16) of the springload
at least one rocking lever (8, 9) acts as foot pedal
the rocking levers (8, 9) of both fronts are coupled by means of a connecting rod (17) which is positioned at the bottom of the base plate
thus characterized
that in case of counter sense arranged rocking levers (8, 9) the connecting rod consists only out of one tensile and compressive loaded rod (17), which is hinged to one rocking lever (8) above his point of support (6) and to the other rocking lever (9) beyond his point of support (7). - Catering trolley according to the superior term of claim 1,
thus characterized,
that the rocking levers (81, 91) of both front ends are arranged in the same sense, whereby that rocking lever is designed as break pedal (81), whose release defining supporting surface (10) is oriented outwards, and that a tensile/compressive loaded rod (18) is assigned, that runs directly at the bottom of the base plate (1) and which is hinged in each case above the supporting points (6, 7) of the both rocking levers (81, 91) to the rocking levers. - Catering trolley according to claim 1 or 2,
thus characterized,
that at the transition line between the two supporting surfaces (10, 12, or 11, 13 respectively) of the rocking lever (8 respectively 9 and 81 respectively 91) at least one pulley (14, 15) is assigned, which is in contact with the bottom of the base plate (1). - Catering trolley according to claim 1 or 2 or 3,
thus characterized,
that besides the rocking lever, which is designed as break pedal (8, 9, 81), a likewise on the break rod (6, 7) supported release pedal (19) is arranged, which is hinged, on the end oposite to the tread surface (20), to a bend lever (21) that reverses the swivelling motion of the release pedal and that supports with one end on the bottom of the base plate and extends with the other end (23) behind a carrier (24) of the rocking lever.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8809876U DE8809876U1 (en) | 1988-08-03 | 1988-08-03 | |
| DE8809876U | 1988-08-03 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0353522A2 EP0353522A2 (en) | 1990-02-07 |
| EP0353522A3 EP0353522A3 (en) | 1990-11-22 |
| EP0353522B1 true EP0353522B1 (en) | 1993-12-29 |
Family
ID=6826581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89112909A Expired - Lifetime EP0353522B1 (en) | 1988-08-03 | 1989-07-14 | Catering trolley, in particular for passenger aircraft |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0353522B1 (en) |
| DE (2) | DE8809876U1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3131562C1 (en) * | 1981-08-08 | 1983-03-10 | Lermer Apparatebau Gmbh, 6200 Wiesbaden | Brake for rollable containers |
| DE3444799A1 (en) * | 1984-04-16 | 1985-11-14 | Rolf Rodehau GmbH & Co KG Metallwarenfabrik, 6070 Langen | BLOCKING BRAKE FOR ROLLABLE CONTAINERS, IN PARTICULAR SERVING TROLLEYS |
| CH675565A5 (en) * | 1988-03-15 | 1990-10-15 | Romay Ag | |
| DE8809849U1 (en) * | 1988-08-02 | 1988-09-22 | Lermer Gmbh, 6200 Wiesbaden, De |
-
1988
- 1988-08-03 DE DE8809876U patent/DE8809876U1/de not_active Expired
-
1989
- 1989-07-14 EP EP89112909A patent/EP0353522B1/en not_active Expired - Lifetime
- 1989-07-14 DE DE89112909T patent/DE58906544D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0353522A3 (en) | 1990-11-22 |
| DE58906544D1 (en) | 1994-02-10 |
| DE8809876U1 (en) | 1989-12-07 |
| EP0353522A2 (en) | 1990-02-07 |
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